- pass label strlen since in many cases its already known. - use single linked list for cached text drawing. - add BLI_link_utils.h for single linked list macros. own tests give approx 22% overall speedup.
- pass label strlen since in many cases its already known. - use single linked list for cached text drawing. - add BLI_link_utils.h for single linked list macros. own tests give approx 22% overall speedup.